Sofa



FIG. 1 is a left front perspective view of a sofa showing my new design;

FIG. 2 is a right rear perspective view thereof;

FIG. 3 is a left front perspective view, shown in the reclined position thereof;

FIG. 4 is a front elevational view, shown in the non-reclined position thereof;

FIG. 5 is a left elevational view thereof, the right side elevation being a mirror image;

FIG. 6 is a right rear perspective view, shown in the reclined position thereof; and,

FIG. 7 is a top plan view, shown in the non-reclined position thereof.

The broken lines in the figures are for the purpose of illustrating portions of the sofa, which form no part of the claimed design. 

CLAIM The ornamental design for a sofa, as shown and described. 